For the German — whose best mate is Liverpool chief Jurgen Klopp — has transformed the Terriers this season with his innovative ideas.

And Hudson reckons their run to tomorrow’s Championship play-off final against Reading can be traced back to Wagner’s most wackiest suggestion yet — last summer’s survival camp on a remote Swedish island.

It was there that the Terriers, who had to fend for four days without electricity, toilets and running water, forged a team bond which they take with them into the rather different surrounds of Wembley.

Hudson said: “I remember that trip well — it was certainly an eye opener!

“The boss did it once before with Borussia Dortmund and he said he would never do it again, so that says something!

“We had four days of rowing, camping, cooking and getting to know each other.

Wagner also ordered his new signings to live within 15 miles of their training ground.

Hudson smiled: “I live in Manchester now and he didn’t make me move!

“Being an older pro, my kids are settled in schools. But when you are new to the club, it’s important to be near here, because it gives you the opportunity to be on the site a lot more. The boss doesn’t want to waste energy with travel, which is great.”

Their Canalside complex used to be the working men’s club for the nearby chemical factory.

And it remains open to the public, where OAPs come for lunch or a game of snooker, while the Terriers team go about their match preparations.

Hudson said: “It’s a community area and a community club. We didn’t want to push everyone away. We wanted to keep it like it is. You don’t want to go away from the family side of things.” Hudson has been part of the Huddersfield family since he joined from Cardiff in 2014.

But the centre-back featured in less than half of their league games this season and he is likely to be on the bench again at Wembley.